information hiding\dct\dct.m ..................\...\dct0.txt ..................\...\dct0.wav ..................\...\dct1.txt ..................\...\dct1.wav ..................\lsb\lsb.m ..................\...\lsb0.txt ..................\...\lsb0.wav ..................\...\lsb1.txt ..................\...\lsb1.wav ..................\dct ..................\lsb information hiding